Secular is a fast solver for hierarchical secular dynamics, designed for studying long-term orbital evolution in triple and quadruple stellar/planetary systems.
$ secular --info
┌─────────────────────────────────────────────┐
│ Secular Dynamics Solver │
│ Hierarchical triples ✓ │
│ Quadruple systems ✓ │
│ Lidov-Kozai oscillations ✓ │
│ Stability analysis ✓ │
│ Highly optimized ✓ │
└─────────────────────────────────────────────┘
Key Features:
- Solves orbit-averaged equations of motion for hierarchical systems
- Highly optimized for Lidov-Kozai oscillation studies
- Long-term stability limit analysis
- Applications: triple star systems, planet–binary interactions, compact object mergers
Yihan Wang
Postdoctoral Research Associate (Assistant Professor at HKU, Fall 2026)
Establishing a unified framework of disk-regulated cluster dynamics to understand AGN transients and gravitational wave sources.